Title :
Minimum bit error probability of large randomly spread MC-CDMA systems in multipath Rayleigh fading
Author :
Müller, Ralf R. ; Tulino, Antonia M.
Author_Institution :
Forschungszentrum Telekommunikation, Wien, Austria
fDate :
30 Aug.-2 Sept. 2004
Abstract :
We address bit error probability of the optimum multiuser detector for multi-carrier code division multiple access in frequency-selective fading channels. We use the replica method, a tool from statistical physics, to calculate the bit error probability in the large system limit for randomly assigned spreading sequences. The analysis allows for binary input symbols with biased probabilities and, therefore, can be used to analyze iterative multiuser decoders.
Keywords :
Rayleigh channels; binary sequences; code division multiple access; error statistics; iterative decoding; multipath channels; multiuser detection; optimisation; spread spectrum communication; MC-CDMA; biased probabilities; binary input symbols; frequency-selective fading channels; iterative multiuser decoders; large randomly spread systems; minimum bit error probability; multi-carrier code division multiple access; multipath Rayleigh fading; optimum multiuser detector; randomly assigned spreading sequences; replica method; statistical physics; Additive white noise; Detectors; Discrete Fourier transforms; Error probability; Fading; Iterative decoding; Multiaccess communication; Multicarrier code division multiple access; Physics; Rayleigh channels;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on
Print_ISBN :
0-7803-8408-3
DOI :
10.1109/ISSSTA.2004.1371762
